基本信息:
- 专利标题： 평면 투명 시트를 사용한，강력한 광학 터치 스크린 시스템 및 방법
- 专利标题（英）：Robust optical touch-screen systems and methods using a planar transparent sheet
- 专利标题（中）：稳定的光学触屏系统和使用平面透明片的方法
- 申请号：KR1020147016391 申请日：2012-11-20
- 公开(公告)号：KR1020140097380A 公开(公告)日：2014-08-06
- 发明人： 킹,제프리스탑레톤 , 피쿨라,드라간 , 월커,리차드크레이톤
- 申请人： 코닝 인코포레이티드
- 申请人地址： One Riverfront Plaza, Corning, NY ***** U.S.A.
- 专利权人： 코닝 인코포레이티드
- 当前专利权人： 코닝 인코포레이티드
- 当前专利权人地址： One Riverfront Plaza, Corning, NY ***** U.S.A.
- 代理人： 청운특허법인
- 优先权： US61/564,024 2011-11-28
- 国际申请： PCT/US2012/065957 2012-11-20
- 国际公布： WO2013081896 2013-06-06
- 主分类号： G06F3/042
- IPC分类号： G06F3/042
Using a flat transparent sheet, and an optical touch screen configured to determine the location of the touch event on the transparent sheet is disclosed. The light source element and the light-sensing device are disclosed to enable operation in the transparent sheet periphery. The light is detected in accordance with the line-of-sight between light source elements and the light-sensing device. The gamswa line of sight is determined due to a touch event. Polygon are set by, for each photo-sensing device overlaps the triangle defined by the limited line-of-sight. Polygons with the attenuation of the attenuation under the threshold are removed. Then, the center of the remaining polygons are determined to set the position of the touch event. The system and method provides a robust detection of multiple touch events.